My plugin triggers autocomplete on period. In the lastest update, the autocomplete box disappears instantly. My only guess as to why is because ST2 looks at the previous character, sees it's a period and closes the autocomplete.

This is still an issue in this version. While I have a workaround in my plugin (using underscores), it is not ideal. If I may make a suggestion, you could hide the autocomplete using a macro, something like: